Physical Science Semester Review

What is the charge and location of the following subatomic particles in the atom? Protons __________________ Neutrons __________________ Electrons __________________

(a)  

An atom with a charge is called a(n) (a)   .

An element that gains electrons has a (a)   charge.

An element that loses electrons has a (a)   charge.

If an ion of an element with atomic number 25 has a +2 charge, how many electrons would it have?

• 21

• 23

• 25

• 27

If an ion of an element with atomic number 25 has a -2 charge, how many electrons would it have?

• 23

• 25

• 27

• 28

Tags

NGSS.MS-PS1-1

Atoms of the same element with the same number of protons but different numbers of neutrons are called (a)   .

What are the outermost electrons of an atom called?

• Core electrons

• Valence electrons

• Inner electrons

• Free electrons

Which of the following terms is used to describe metals that can be drawn into wires?

• Ductile

• Malleable

• Luster

What is the atomic number of Chlorine (Cl) on the periodic table?

• 15

• 16

• 17

• 18